Upgrade Network page continues to say Database Upgrade Required

Description

I'm running 3.6RC2 on 2 separate installations on separate servers. Both with Multisite Subdomains active. On both the /wp-admin/network/upgrade.php page says "Database Upgrade Required" despite running the Upgrade Network process several times. The sites appear to be working normally.

We cleared everything we could think of so I don't think so, but I'm by no means an expert. Since the opening the ticket I upgraded 2 additional installation and get the same message. I'm also using a domain mapping plugin (WordPress MU Domain Mapping). I disabled all plugins and re-ran the upgrade script and nothing changed. I haven't noticed any issues using any of the sites showing the error.

I misread the report and thought it was about the dashboard notification bar — turns out this is the same issue that hallsofmontezuma reported to me privately.

Yes, upgrade.php always says "Database Upgrade Required". I guess we need to tweak [23619]. We could consider removing the <h3> for 3.6.1, though we can probably just fix this up in 3.7 — you only land on this page if you need to run an update; otherwise, you'd have to go to it on your own.

Given that there is a link to the page that is more readily apparent on the network admin, it makes sense that people are visiting this on their own. Accidentally, yes, but if a page has a link to it on the admin sidebar, they will visit :)